Home / 122,008,193.55-168,309,049.77-77,908,825.71

Finding the Fourth Proportional to 122,008,193.55, 168,309,049.77 and 77,908,825.71

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Solution

The fourth proportional to 122,008,193.55, 168,309,049.77 and 77,908,825.71 is: 107,474,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,008,193.55 : 168,309,049.77 = 77,908,825.71 : x
  2. Step 2: Convert to fraction form
    122,008,193.55/168,309,049.77 = 77,908,825.71/x
  3. Step 3: Cross multiply
    122,008,193.55x = 168,309,049.77 × 77,908,825.71
  4. Step 4: Simplify right side
    122,008,193.55x = 13,112,760,423,946,646
  5. Step 5: Solve for x
    x = 13,112,760,423,946,646/122,008,193.55
  6. Step 6: Final answer
    x = 107,474,424.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.